Analysis

  • max time kernel
    120s
  • max time network
    126s
  • platform
    windows7_x64
  • resource
    win7-20240221-en
  • resource tags

    arch:x64arch:x86image:win7-20240221-enlocale:en-usos:windows7-x64system
  • submitted
    01-06-2024 07:11

General

  • Target

    04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988.exe

  • Size

    667KB

  • MD5

    5e49d2cbacb9ff6f73e3ec9f32284fd9

  • SHA1

    f462570b7ef6cb88a8bfdcc738337bc681eaa97e

  • SHA256

    04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988

  • SHA512

    6ec72c6c7661135603e9addd8196d1c688cfb72a82a93df8ee21d99c6a2b25292d402ca206131b16191213ddb68c99a882c674483a54337009a6b671b5877346

  • SSDEEP

    12288:RLJS4VgPtydwOowU+LfkliHTAQ5F/Mq2JF3hpmdWAwQjAWFVH4I9zifQvVkR:7ScMt6o+zeWb5FkqcFRp8XjAgV4MiIA

Malware Config

Extracted

Family

agenttesla

Credentials

Signatures

  • AgentTesla

    Agent Tesla is a remote access tool (RAT) written in visual basic.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 2 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Reads WinSCP keys stored on the system 2 TTPs

    Tries to access WinSCP stored sessions.

  • Reads data files stored by FTP clients 2 TTPs

    Tries to access configuration files associated with programs like FileZilla.

  • Reads user/profile data of local email clients 2 TTPs

    Email clients store some user data on disk where infostealers will often target it.

  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Suspicious use of SetThreadContext 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Creates scheduled task(s) 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

  • Suspicious behavior: EnumeratesProcesses 6 IoCs
  • Suspicious use of AdjustPrivilegeToken 4 IoCs
  • Suspicious use of WriteProcessMemory 21 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988.exe
    "C:\Users\Admin\AppData\Local\Temp\04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988.exe"
    1⤵
    • Suspicious use of SetThreadContext
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:1284
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Local\Temp\04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2688
    • C:\Windows\SysWOW64\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" Add-MpPreference -ExclusionPath "C:\Users\Admin\AppData\Roaming\zhtUkOnXfvAhiZ.exe"
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2852
    • C:\Windows\SysWOW64\schtasks.exe
      "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\zhtUkOnXfvAhiZ" /XML "C:\Users\Admin\AppData\Local\Temp\tmpC755.tmp"
      2⤵
      • Creates scheduled task(s)
      PID:2432
    • C:\Users\Admin\AppData\Local\Temp\04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988.exe
      "C:\Users\Admin\AppData\Local\Temp\04247ecef21dfc90bca496a3c8419dfef5c82592114eabb4bb80ff9084463988.exe"
      2⤵
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2992

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Local\Temp\tmpC755.tmp

    Filesize

    1KB

    MD5

    292ddc28eb7333f8f58bf53007c9f0d8

    SHA1

    7e10c6dc099a0ec02cba02625128f0b680ec75b1

    SHA256

    e0ddbacbb10df72a019f877ee0e3257b91cfd335bcc17653298d741d6621b97e

    SHA512

    4357d8a04856b7d0057f5500414a741d29224fea278d228a349309134cc92904fd5af01db54879e933e3a45622c10b22628cfd50f68c6a6dde7e5a33d40ee0f8

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\VMWBP3UE79OAXX0Y03I8.temp

    Filesize

    7KB

    MD5

    98a2a81daa3f44ca88c70b40c889f8bf

    SHA1

    c0aacaaff6bd23176fca6efb80b22fbb66642992

    SHA256

    ccf821bc856b2bcfb1c2bdd31de739b1a4a291fe5cb91d5b2a4579a2f326b73f

    SHA512

    d117df9c42e4649908c5074373871e10084b0cd9acd87f5ea500615192da849405ccb9f33016e82cb28ddbc816fbdac1adc78b243c4eef99cdcd1cbefe737b93

  • memory/1284-30-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/1284-1-0x00000000010E0000-0x000000000118A000-memory.dmp

    Filesize

    680KB

  • memory/1284-2-0x00000000745E0000-0x0000000074CCE000-memory.dmp

    Filesize

    6.9MB

  • memory/1284-3-0x00000000005B0000-0x00000000005C8000-memory.dmp

    Filesize

    96KB

  • memory/1284-4-0x0000000000290000-0x00000000002A0000-memory.dmp

    Filesize

    64KB

  • memory/1284-5-0x0000000005330000-0x00000000053B2000-memory.dmp

    Filesize

    520KB

  • memory/1284-0-0x00000000745EE000-0x00000000745EF000-memory.dmp

    Filesize

    4KB

  • memory/2992-29-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2992-27-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2992-26-0x000000007EFDE000-0x000000007EFDF000-memory.dmp

    Filesize

    4KB

  • memory/2992-25-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2992-22-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2992-20-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2992-18-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB

  • memory/2992-28-0x0000000000400000-0x0000000000440000-memory.dmp

    Filesize

    256KB